diff --git a/depends/install_imagequant.sh b/depends/install_imagequant.sh
index ded691b7c..75e023551 100755
--- a/depends/install_imagequant.sh
+++ b/depends/install_imagequant.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # install libimagequant
 
-archive=libimagequant-2.9.0
+archive=libimagequant-2.9.1
 
 ./download-and-extract.sh $archive https://raw.githubusercontent.com/python-pillow/pillow-depends/master/$archive.tar.gz